Use this set to cover all the activities in the ‘Mathematics with Polydron’ resource book.This 266 piece set contains:20 Hexagons30 Squares80 Equilateral Triangles12 Pentagons40 Right Angle Triangles60 Isosceles Triangles24 Root2 Triangles2 Protractors1 Exploring booklet. Each square piece measures 7.5 x 7.5cm.Age: 4+.